Nutella Gooey Butter Cake

found this recipe at plain chicken blog, made it for father's day for nutella loving dh. not as strong of nutella flavor as i had hoped but very tasty! i also didn't use the whole 16 oz box of sugar, probably left about 1 cup and it was plenty sweet, but i am posting the recipe as i got it. would be wonderful also with vanilla ice cream since it's so gooey and rich.

• Ready In: 1 hr
• Serves: 18-24
• Yields: 1 cake

Ingredients

• 18 1⁄2 ounces  devil's food cake mix
• 1  egg
• 8  tablespoons butter, melted
• 8  ounces cream cheese, softened
• 1  cup  nutella (i used 1 cup)
• 8  tablespoons butter
• 3  eggs
• 1  teaspoon vanilla
• 16  ounces confectioners' sugar

Directions

1. mix cake mix with 8 tbs butter and 1 egg- it will not be wet like batter- and pat into 13 x 9 in pan that's greased.
2. beat cream cheese and nutella until smooth, add eggs, butter and vanilla, beat until smooth.
3. beat in confectioners sugar, reserving a little for the top of the cake (once it's cooled).
4. bake at 350 for 50 minutes, the center will jiggle quite a bit but don't over bake, you want it gooey.
5. cool completely and sprinkle with confectioners sugar.